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4 "Yun Kyung Cho"
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Original Articles
Diabetes, obesity and metabolism
Phloretin Ameliorates Succinate-Induced Liver Fibrosis by Regulating Hepatic Stellate Cells
Cong Thuc Le, Giang Nguyen, So Young Park, Hanh Nguyen Dong, Yun Kyung Cho, Jae-Ho Lee, Seung-Soon Im, Dae-Hee Choi, Eun-Hee Cho
Endocrinol Metab. 2023;38(4):395-405.   Published online August 3, 2023
DOI: https://doi.org/10.3803/EnM.2023.1661
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AbstractAbstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM
Background
Hepatic stellate cells (HSCs) are the major cells which play a pivotal role in liver fibrosis. During injury, extracellular stimulators can induce HSCs transdifferentiated into active form. Phloretin showed its ability to protect the liver from injury, so in this research we would like to investigate the effect of phloretin on succinate-induced HSCs activation in vitro and liver fibrosis in vivo study.
Methods
In in vitro, succinate was used to induce HSCs activation, and then the effect of phloretin on activated HSCs was examined. In in vivo, succinate was used to generated liver fibrosis in mouse and phloretin co-treated to check its protection on the liver.
Results
Phloretin can reduce the increase of fibrogenic markers and inhibits the proliferation, migration, and contraction caused by succinate in in vitro experiments. Moreover, an upregulation of proteins associated with aerobic glycolysis occurred during the activation of HSCs, which was attenuated by phloretin treatment. In in vivo experiments, intraperitoneal injection of phloretin decreased expression of fibrotic and glycolytic markers in the livers of mice with sodium succinate diet-induced liver fibrosis. These results suggest that aerobic glycolysis plays critical role in activation of HSCs and succinate can induce liver fibrosis in mice, whereas phloretin has therapeutic potential for treating hepatic fibrosis.
Conclusion
Intraperitoneal injection of phloretin attenuated succinate-induced hepatic fibrosis and alleviates the succinate-induced HSCs activation.
Diabetes, Obesity and Metabolism
Prognostic Value of Triglyceride and Glucose Index for Incident Type 2 Diabetes beyond Metabolic Health and Obesity
Hwi Seung Kim, Jiwoo Lee, Yun Kyung Cho, Eun Hee Kim, Min Jung Lee, Hong-Kyu Kim, Joong-Yeol Park, Woo Je Lee, Chang Hee Jung
Endocrinol Metab. 2021;36(5):1042-1054.   Published online October 21, 2021
DOI: https://doi.org/10.3803/EnM.2021.1184
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AbstractAbstract PDFSupplementary MaterialPubReader   ePub   CrossRef-TDMCrossref - TDM
Background
Metabolically healthy obese (MHO) phenotype is metabolically heterogeneous in terms of type 2 diabetes (T2D). Previously, the triglyceride and glucose (TyG) index has been considered for identifying metabolic health and future risk of T2D. This study aimed to evaluate the risk of incident T2D according to obesity status and metabolic health, categorized by four different criteria and the TyG index.
Methods
The study included 39,418 Koreans without T2D at baseline. The risk of T2D was evaluated based on four different definitions of metabolic health and obesity status and according to the baseline TyG index within each metabolic health and obesity group.
Results
During the median follow-up at 38.1 months, 726 individuals developed T2D. Compared with the metabolically healthy non-obese (MHNO) group with low TyG index, the MHO group with high TyG index showed increased risk of T2D in all four definitions of metabolic health with multivariate-adjusted hazard ratios of 2.57 (95% confidence interval [CI], 1.76 to 3.75), 3.72 (95% CI, 2.15 to 6.43), 4.13 (95% CI, 2.67 to 6.38), and 3.05 (95% CI, 2.24 to 4.15), when defined by Adult Treatment Panel III, Wildman, Karelis, and homeostasis model assessment (HOMA) criteria, respectively.
Conclusion
MHO subjects with high TyG index were at an increased risk of developing T2D compared with MHNO subjects, regardless of the definition of metabolic health. TyG index may serve as an additional factor for predicting the individual risk of incident T2D in MHO subjects.
Brief Report
Adrenal gland
Novel ABCD1 Gene Mutation in a Korean Patient with X-Linked Adrenoleukodystrophy Presenting with Addison's Disease
Yun Kyung Cho, Seo-Young Lee, Sang-Wook Kim
Endocrinol Metab. 2020;35(1):188-191.   Published online March 19, 2020
DOI: https://doi.org/10.3803/EnM.2020.35.1.188
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  • 1 Citations
AbstractAbstract PDFPubReader   ePub   CrossRef-TDMCrossref - TDM

X-linked adrenoleukodystrophy (X-ALD) occurs due to mutations in the ABCD1 gene that encodes the peroxisomal membrane protein peroxisomal transporter ATP-binding cassette sub-family D member 1 (ABCD1). Degradation of very long-chain fatty acids in peroxisomes is impaired owing to ABCD dysfunction, subsequently leading to adrenomyeloneuropathy, cerebral adrenoleukodystrophy, and adrenal insufficiency. X-ALD frequently induces idiopathic Addison's disease in young male patients. Here, we confirmed the diagnosis of X-ALD in a young male patient with primary adrenal insufficiency, and identified a novel ABCD1 gene mutation (p.Trp664*, c.1991 G>A).

Citations

Citations to this article as recorded by  
  • Ocular findings and genomics of X-linked recessive disorders: A review
    Asima Hassan, YaserR Mir, RajaA H Kuchay
    Indian Journal of Ophthalmology.2022; 70(7): 2386.     CrossRef
Case Report
A Case of Acromegaly First Diagnosed in Pregnancy.
Jinny Suh, Hyun Kyung Cho, Yoon Jung Kim, Eun Gyoung Hong, Bong Nam Chae, Seong Kyu Lee, Yoon Sok Chung, Kwan Woo Lee, Kyung Joo Hwang, Hyeon Man Kim
J Korean Endocr Soc. 1999;14(1):148-152.   Published online January 1, 2001
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  • 18 Download
AbstractAbstract PDF
Pregnancy in acromegaly is very rare. Amenorrhea and infertility are common manifestations in acromegaly. The pregnancy may be influenced by acromegaly in many ways and pregnancy itself may influence the course of a pituitary tumor. We report of a case of pregnancy in a woman who was diagnosed with acromegaly during the course of pregnancy. Her pregnancy was uneventful and she delivered a healthy baby at 38 weeks by cesarean section. No treatment was undertaken during the pregnancy and transsphenoidal surgery was performed after the delivery.

Endocrinol Metab : Endocrinology and Metabolism